package com.xh.bussiness.resource.util;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import java.io.IOException;
import java.net.URL;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.io.File;
import java.io.FileOutputStream;


@Component
public class web365Utils {


//    private  static  String  baseUrl = "http://axxinbiaopin.xiaohe.com/test/";

    private  static  String  baseUrl;

    private  static  String  url ="http://web365.dianjinwendao.com/?info=1&furl=";

//    private  static  String  param = "&p=1";

    @Value("${xh.web365FilePrefix}")
    public void setBaseUrl(String baseUrl) {
        web365Utils.baseUrl = baseUrl;
    }

    /**
     * 从网络Url中下载文件
     */
    public static void  downLoadFromUrl(String filePath,String fileName,String savePath) throws IOException{
//        filePath = "upload/202011/11/1605077719640548663.docx";
//        filePath = "upload/202011/11/1605077719640548663.pdf";
        String urlStr = url + baseUrl + filePath ;

        URL url = new URL(urlStr);
        HttpURLConnection conn = (HttpURLConnection)url.openConnection();
        //设置超时间为3秒
        conn.setConnectTimeout(3*1000);
        //防止屏蔽程序抓取而返回403错误
        conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");

        //得到输入流
        InputStream inputStream = conn.getInputStream();
        //获取自己数组
        byte[] getData = readInputStream(inputStream);

        //文件保存位置
        File saveDir = new File(savePath);
        if(!saveDir.exists()){
            saveDir.mkdir();
        }
        File file = new File(saveDir+File.separator+fileName);
        FileOutputStream fos = new FileOutputStream(file);
        fos.write(getData);
        if(fos!=null){
            fos.close();
        }
        if(inputStream!=null){
            inputStream.close();
        }

        System.out.println("info:"+url+" download success");

    }



    /**
     * 从输入流中获取字节数组
     * @param inputStream
     * @return
     * @throws IOException
     */
    public static  byte[] readInputStream(InputStream inputStream) throws IOException {
        byte[] buffer = new byte[1024];
        int len = 0;
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        while((len = inputStream.read(buffer)) != -1) {
            bos.write(buffer, 0, len);
        }
        bos.close();
        return bos.toByteArray();
    }

    public static void main(String[] args) {
//        String  baseUrl = "http://axxinbiaopin.xiaohe.com/test/";
//        String url = "http://web365.xiaohe.com:8088/?i=34&info=1&furl=";
        String filePath = "upload/202011/10/1604979732472821357.pptx";
//        String  param = "&p=1";
//
//        String urlStr = url + baseUrl + filePath + param;

        String savePath = "/home/thev/workspace/xiaohe/projects/ax_standard_new/src/main/webapp/export/";

        try {
            downLoadFromUrl(null,"111.png",savePath);
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

}
